CN110275500B - Extension unit of train operation monitoring system - Google Patents
Extension unit of train operation monitoring system Download PDFInfo
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- CN110275500B CN110275500B CN201910669023.4A CN201910669023A CN110275500B CN 110275500 B CN110275500 B CN 110275500B CN 201910669023 A CN201910669023 A CN 201910669023A CN 110275500 B CN110275500 B CN 110275500B
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- 238000004891 communication Methods 0.000 claims abstract description 63
- 238000012423 maintenance Methods 0.000 claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 230000003993 interaction Effects 0.000 claims description 12
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- 230000003137 locomotive effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or train for signalling purposes
- B61L15/0054—Train integrity supervision, e.g. end-of-train [EOT] devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/4183—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by data acquisition, e.g. workpiece identification
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/4184—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by fault tolerance, reliability of production system
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/41845—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by system universality, reconfigurability, modularity
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/4185—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by the network communication
- G05B19/41855—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by the network communication by local area network [LAN], network structure
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/4185—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by the network communication
- G05B19/4186—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by the network communication by protocol, e.g. MAP, TOP
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/4188—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by CIM planning or realisation
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/4189—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by the transport system
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- Manufacturing & Machinery (AREA)
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Abstract
The extension unit comprises an Ethernet exchange module, a security level adjustment acquisition module, a digital-to-analog conversion module, a function extension module, a wireless communication module and a communication module; the safety adjustment acquisition module, the digital-to-analog conversion module, the function expansion module and the communication module realize internal communication through a redundant CANFD bus, and the wireless communication module and the communication module realize external communication through the Ethernet bus through the connection of the Ethernet exchange module; the wireless communication module also provides a wireless debugging interface and a wireless maintenance interface. The invention has the technical advantages that: an extension unit of a novel train operation monitoring system adopts a safe level adjustment acquisition module, and the system structure of an internal bus and an external bus is combined with the use of a CANFD bus, so that the novel train operation monitoring system is safer and more reliable; the software maintenance interface of wireless communication and the transmission mechanism of wireless transparent transmission improve the universality and maintainability of the safety computer platform.
Description
Technical Field
The invention relates to the field of automatic control of trains, in particular to a novel train operation monitoring system which is used for integrating extension units of a plurality of external devices.
Background
The train operation monitoring system (LKJ) comprises a host unit and a man-machine interaction unit, and also comprises a plurality of external devices such as a function expansion box, a shunting light display interface box, a speed sensor and the like, and also comprises a locomotive safety information comprehensive monitoring device (TAX), train operation state information system vehicle-mounted equipment (LAIS vehicle-mounted equipment) and other related equipment. In the actual application process, because different application environments need to be adapted, when the external devices and the related devices are connected, the related junction boxes need to be configured, and with the continuous increase of the connected external devices, the difficulty in installation and maintenance of the LKJ is increased, and a series of safety related problems are brought.
To sum up, in order to satisfy the demand of novel train operation monitored control system, solve the problem of existing LKJ equipment in using, improve LKJ's security, reliability, scalability, usability etc.. In a new train operation monitoring system, there is a need for an extension unit that can integrate external devices: through which an external device of the LKJ can be connected, through which an LKJ-related device can be connected or extended.
Disclosure of Invention
Aiming at the problems, the invention provides a safe acquisition design of safety data, and the more optimized system structure software is very flexible to maintain.
The invention provides an expansion unit of a train operation monitoring system LKJ, which comprises an Ethernet switching module, a safety level adjustment acquisition module, a digital-to-analog conversion module, a function expansion module, a wireless communication module and a communication module, wherein the Ethernet switching module is used for switching the Ethernet switching module and the safety level adjustment acquisition module;
the wireless communication module and the communication module are respectively connected with the Ethernet exchange module through the Ethernet bus to realize external communication, namely the expansion unit is communicated with the LKJ host unit and the human-computer interaction unit;
the main function of the expansion unit is to expand the connection of external equipment; meanwhile, the three LKJ components are connected through an Ethernet bus; except for normal working data communication, each unit is provided with a debugging interface and a maintenance interface, any unit can realize software upgrading of the unit and other two units through the debugging interface and the Ethernet bus of the unit, and any unit can realize the basic data reloading function in the host unit through the maintenance interface and the Ethernet bus of the unit;
the wireless communication module is also used for providing a wireless debugging interface and a wireless maintenance interface through wireless communication; the basic data in the host unit can be reloaded through the wireless maintenance interface, and software upgrading of each unit in the LKJ system is realized through the wireless debugging interface.
The invention has the technical advantages that: an extension unit of a novel train operation monitoring system adopts a safe level adjustment acquisition module, and the system structure of an internal bus and an external bus is combined with the use of a CANFD bus, so that the novel train operation monitoring system is safer and more reliable; the software maintenance interface of wireless communication and the transmission mechanism of wireless transparent transmission improve the universality and maintainability of the safety computer platform.
Drawings
[1] FIG. 1 is a system architecture and external device communication connection diagram of an expansion unit according to the present invention
[2] FIG. 2 is a schematic diagram of a wireless debug and maintenance interface of the expansion unit of the present invention
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings. The following embodiments provide a communication connection of a portion of the external device to the expansion unit, which will aid those skilled in the art in further understanding the present invention, but are not intended to limit the present invention in any way.
A novel train operation monitoring basic unit is shown in figure 2, and the novel LKJ system is composed of a host unit, a human-computer interaction unit and an expansion unit. The division of the three components is clear, the main function of the main unit is train operation control, the main function of the man-machine interaction unit is man-machine interaction and visual monitoring interface, and the main function of the expansion unit is to expand the connection of external equipment; meanwhile, the three constituent units are connected through the Ethernet bus, except for normal working data communication, each unit is provided with a debugging interface and a maintenance interface, software upgrading of the unit and other two units can be realized through the debugging interface and the Ethernet bus of the unit, and basic data in the host unit can be reloaded through the maintenance interface and the Ethernet bus of the unit.
The system structure of the expansion unit of the novel train operation monitoring system is shown in figure 1, and the expansion unit consists of 6 main modules, namely an Ethernet exchange module, a safety level adjustment acquisition module, a digital-to-analog conversion module, a function expansion module, a wireless communication module and a communication module. The safety adjustment acquisition module, the digital-to-analog conversion module, the function expansion module and the communication module realize internal communication through a redundant CANFD bus, and the wireless communication module and the communication module realize external communication through the Ethernet bus and the connection with the Ethernet exchange module respectively, namely, the communication between the expansion unit and the LKJ host unit and the man-machine interaction unit is realized.
In fig. 1, the connection mode of the expansion unit and other external devices except the LKJ host unit and the human-computer interaction unit is according to an embodiment of the present invention, and by way of example and not limitation, the external device connection of the expansion unit may be adjusted according to practical applications.
The module is formed and concretely implemented as follows:
ethernet switch module (ethernet switch): the only interface for communication between the expansion unit and the LKJ host unit and the man-machine interaction unit is provided, the Ethernet bus can meet the requirements of large data transmission and high speed, and the real-time performance and effectiveness of external equipment data or files can be effectively guaranteed.
Safe level adjustment acquisition module: and a two-out-of-two safety structure is adopted to collect data of the planar wireless shunting light display device, and the planar wireless shunting light display device is communicated with the communication module through an internal CANFD bus.
A digital-to-analog conversion module: and receiving the speed information acquired by the host unit, and outputting the speed information to the double-needle speedometer for display through digital-to-analog conversion. When the host unit fails, the real-time speed signal of the speed sensor can be acquired, and the real-time speed signal is output to the double-pointer meter for display after digital-to-analog conversion.
The function expansion module: and collecting GPS/BDS data, digital level signals and the like, such as whistling and passing phase separation equipment.
A wireless communication module: through wireless communication, a wireless debugging interface and a wireless maintenance interface are provided, as shown in fig. 2, basic data in the host unit is reloaded through the wireless maintenance interface, software upgrading of each unit in the LKJ system is realized through the debugging maintenance interface, and the software upgrading range includes, but is not limited to, the LKJ host unit, the human-computer interaction unit and the expansion unit. The wireless communication module adopts wireless safety communication protocol communication, and data is transmitted in a transparent transmission mode, namely, the data which is received without errors is not analyzed by the safety protocol of the data and is directly sent to the host unit (through the Ethernet switch), so that the compatibility and the applicability of the wireless communication module are improved.
A communication module: providing interfaces such as a plurality of paths of Ethernet, CAN, RS422 and the like for external equipment or related equipment to be connected in an expansion way; data of each module of the extension unit is collected or distributed, and the data conversion function (connection ethernet switch) of the ethernet bus and the CANFD bus is performed.
The distribution of the modules in the extension unit and the functions of the modules are different from those of the existing products, and the module function distribution and design are more reasonable and clear. The safety leveling acquisition module adopts a unique safety structure of taking two out of two, and meets the safety requirements of safety equipment better.
The system structure of combining the CANFD internal bus with the Ethernet external bus is different from the CAN bus and the flexray bus of the existing product. Compared with the prior art, the CANFD bus has higher effective transmission load, higher transmission rate, simple and flexible configuration, and the CANFD optimized CRC algorithm has stronger anti-interference capability and is more suitable for railway complex application scenes. The Ethernet bus can meet the requirements of large data transmission, and has high speed and flexible configuration. The distinguishing structure of the internal bus and the external bus is favorable for effective processing of data, the communication module is used for converting and processing the data in a centralized mode, the data can be optimized, the data processing difficulty of the LKJ host unit is reduced, and the system performance is improved. The redundant bus configuration can greatly improve the reliability and the availability of system communication.
The wireless software upgrading method has the advantages that various debugging interfaces are provided, the wireless software upgrading function is achieved, and the wireless software upgrading method is not provided for existing products. In the field application process, the expansion unit provides another debugging interface, namely a wireless communication debugging interface, besides other debugging interfaces, software upgrading updating can be performed on the LKJ host unit, the human-computer interaction unit, the expansion unit and the like in a wireless mode, the problems of complex field environment, large workload, version updating control and the like during software upgrading are solved, and the availability and the reliability of field application are improved.
The wireless communication module adopts a wireless safety communication protocol, directly transmits data to the host unit in a transparent transmission mode, and has the characteristic that the existing product does not have, namely, the wireless communication module does not analyze the safety protocol of the data per se for the received software file to be upgraded or basic data file, and only directly transmits the received error-free data to the host unit through an Ethernet bus. The transparent transmission communication has the advantages that when the safety protocol of data changes, only the software of the main control module of the host unit needs to be updated, the software of the wireless communication module of the expansion unit does not need to be updated, the compatibility and the applicability of the expansion unit are improved, and the maintenance and updating difficulty of the LKJ system is reduced.
The above description is only a preferred embodiment of the present novel scheme, and is not intended to limit the scope of the present novel scheme. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the new scheme shall be included in the protection scope of the new scheme.
Claims (8)
1. An expansion unit of a train operation monitoring system LKJ comprises an Ethernet switching module, a safety leveling acquisition module, a digital-to-analog conversion module, a function expansion module, a wireless communication module and a communication module;
the safety adjustment acquisition module, the digital-to-analog conversion module, the function expansion module and the communication module realize internal communication through a redundant CANFD bus, and the wireless communication module and the communication module realize external communication through the Ethernet bus by the connection of the Ethernet exchange module respectively, namely, the expansion unit is communicated with the LKJ host unit and the human-computer interaction unit;
the safety level adjustment acquisition module adopts a two-out-of-two safety structure and acquires data of a planar wireless shunting light display device, the wireless communication module transmits the data in a transparent transmission mode, the digital-to-analog conversion module receives speed information acquired by the host unit, and digital-to-analog conversion is output to the double-needle speed meter for display;
the main function of the expansion unit is to expand the connection of external equipment; meanwhile, the three LKJ components are connected through an Ethernet bus; except for normal working data communication, each unit is provided with a debugging interface and a maintenance interface, any unit can realize software upgrading of the unit and other two units through the debugging interface and the Ethernet bus of the unit, and any unit can realize the basic data reloading function in the host unit through the maintenance interface and the Ethernet bus of the unit;
the wireless communication module is also used for providing a wireless debugging interface and a wireless maintenance interface through wireless communication; the basic data in the host unit can be reloaded through the wireless maintenance interface, and software upgrading of each unit in the LKJ system is realized through the wireless debugging interface.
2. The expansion unit of claim 1, wherein the ethernet switching module provides a unique interface for the expansion unit to communicate with the LKJ host unit and the human interaction unit.
3. The extension unit of claim 1, wherein the security level acquisition module communicates with a communication module via an internal CANFD bus.
4. The extension unit of claim 1, wherein the digital-to-analog conversion module is capable of acquiring a real-time speed signal of the speed sensor when the host unit fails, and outputting the real-time speed signal to the double-pointer meter for display after digital-to-analog conversion.
5. The expansion unit of claim 1, wherein the communication module provides multiple ethernet, CAN, RS422 interfaces for external devices or related devices to be connected in an expansion manner, and collects or distributes data of each module of the expansion unit to perform data conversion functions of an ethernet bus and a CANFD bus.
6. The extension unit of claim 1, wherein the wireless communication module communicates using a wireless secure communication protocol.
7. The extension unit of claim 6, wherein the wireless communication module does not perform security protocol analysis on the received software file to be upgraded or the basic data file, and only sends the error-free data to the host unit directly through the ethernet bus.
8. The expansion unit of claim 7, wherein when the security protocol of the data changes, only the software of the host unit main control module needs to be updated, and the software of the wireless communication module of the expansion unit does not need to be updated.
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| CN201910669023.4A CN110275500B (en) | 2019-07-23 | 2019-07-23 | Extension unit of train operation monitoring system |
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| CN111600685A (en) * | 2020-05-18 | 2020-08-28 | 湖南中车时代通信信号有限公司 | Device for realizing CAN bus redundancy based on Ethernet |
| CN113928384A (en) * | 2021-11-26 | 2022-01-14 | 北京交大思诺科技股份有限公司 | LKJ 2000-compatible new-generation train operation monitoring expansion unit |
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| CN205034136U (en) * | 2015-10-10 | 2016-02-17 | 河南思维自动化设备股份有限公司 | Train operation monitoring system data expanding unit |
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| CN103728928B (en) * | 2012-10-11 | 2016-06-01 | 中国科学院软件研究所 | A kind of MVB controller based on PicoBlaze |
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| CN105128891B (en) * | 2015-09-02 | 2018-05-11 | 湖南中车时代通信信号有限公司 | A kind of Locomotive Running Monitor System |
| CN205186191U (en) * | 2015-10-10 | 2016-04-27 | 河南思维自动化设备股份有限公司 | Train operation monitoring system |
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| CN202043134U (en) * | 2011-03-21 | 2011-11-16 | 河南思维自动化设备有限公司 | Train-mounted data reloading system for train operation monitor |
| CN205034136U (en) * | 2015-10-10 | 2016-02-17 | 河南思维自动化设备股份有限公司 | Train operation monitoring system data expanding unit |
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| 《2012 12th International Conference on Control, Automation and Systems》;Sehchan Oh;《Design of Train Integrity Monitoring System for Radio based Train Control System》;20121021;第1237页-第1240页 * |
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